2021 GMC YUKON XL Complaints

Vehicle would not go in Reverse. Rear tires locked up. When I went forward an error came up "Reduce acceleration" and went into limp mode while driving down the highway and shifted hard and almost caused an accident. Bought into dealer and they found that it needs a valve body assembly Part which is on backorder with no ETA. Currently been waiting for a month and still no ETA on Part. This should be a recall for 5.3L 10 speed. .

I am writing to formally report a serious issue with my 2021 GMC Yukon XL. The vehicle has developed multiple severe problems, including: •Significant loss of engine power •Noticeable engine knocking noises •Transmission slipping while driving •Transmission movement even when the vehicle is at a full stop These issues not only impair the performance of the vehicle but also raise serious safety concerns. The loss of power and the slipping transmission could lead to a dangerous situation while driving, placing both myself and other motorists at risk.

Engine failed while driving on interstate. Vehicle could not be put in neutral because engine has to be running to shift. Difficult to tow. 4 hours away from home. Took to nearest dealer. Hit by hail storm sitting on dealer lot with $8000 hail damage. Still making payments and have no vehicle to drive.

The contact owns a 2021 GMC Yukon XL. The contact stated while starting the vehicle, the engine made an abnormal sound. Additionally, the low engine oil warning light was illuminated while driving. The vehicle was taken to the dealer, who diagnosed that the lifters and camshafts needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); and the VIN was included in the recall; however, the contact had not yet received a notification. The manufacturer was not made aware of the failure. The failure mileage was approximately 24,000. VIN tool confirms parts not available.

We were driving on the interstate and the car completely shut off. It went to the 'restart engine' screen. My husband put it in neutral and tried to coast off the interstate almost getting hit by cars going 70+ mph. Cars were swerving not to hit us as we coasted across three lanes. One car almost hit another car because they quickly tried to go around us because of our decreasing speed and made that car swerve into the other lane. We ended up only inches off the right lane. We had 2 teenagers and our 1 year old baby in the car with us in the Florida heat. Sitting in that car was truly traumatizing because every semi that passed us, the whole car was shaking because we were so close to the line. I just knew that someone was going to veer off inches and wipe us completely out. Because the engine just shut off, we barely made it off the road so cars were honking at us because they knew the danger we were in not being far enough off the shoulder. We all had to climb out the doors on the right because opening the left side doors would be in the right lane of the interstate. There we sat for 2 hours in 99 degree weather with a 1 year old (who also got bit by ants being in the high grassy area off the interstate) waiting for a tow truck to pick up the Yukon to tow it in to a location that isn't even where we live. We had to wait on someone to come pick us up that could hold 5 people and a car seat plus all of our sports equipment that we had for our tournament that weekend that we were headed home from. A nightmare, truly a nightmare. There was no warning, no lights came on, no heads up that the car was about to completely shut off going 75 mph. It just did, without warning. I was never informed about the POTENTIAL of a recall, or I would have been the first one at the door to get it checked out. My family was put in tremendous danger because of the irresponsibility of GMC. This is a nightmare, truly a nightmare.

I was driving on a highway at speeds of 65 mph and the engine stalled on the left lane. I almost got struck by a tracker trailer. The dealer supposedly fixed the issue and a few months went by and the vehicle died again engine failure in middle of the highway.

I am writing to express my concern regarding a serious issue with my 2021 GMC Yukon. Recently, while driving, I experienced a sudden surge in power. About five minutes later, when attempting to shift into reverse, the vehicle would not respond. I tried multiple times with no success. Afterward, while driving it briefly around the block, it made a clunking sound, which raised further concern. Ultimately, I had to call a tow truck, and the vehicle was taken to George Gee GMC in Liberty Lake, Washington. Unfortunately, the next day the dealership was unable to duplicate the issue. There were no warning messages on the screen at the time of the incident, and no diagnostic codes were found, so they could not move forward with any repair. I later discovered that this exact issue is addressed in Technical Service Bulletin N242454441-02. However, I was informed that my VIN is not included in the special coverage, despite my vehicle being the same year and equipped with the same transmission mentioned in the bulletin. I am deeply concerned that this problem could happen again—possibly while I am driving in Canada, transporting my children, or in a location where calling a tow truck would be very difficult. My safety and my family’s safety are at risk, and frankly, I am now anxious about driving a vehicle I used to trust. I also have an extended warranty, but when I contacted GM service, I was told that unless the problem can be duplicated, it would not be covered. This is extremely frustrating given the severity of the issue and the fact that it is already documented in an official bulletin. I am requesting that this situation be escalated. I would appreciate any additional support, coverage, or guidance GM can offer to help ensure this issue is resolved and does not put me or my family at risk again.

With no warning, the engine died in my vehicle. I was in the middle of a busy intersection at red light with my children. No sensors ever indicated there was a problem. The car could not be put into neutral so it couldn’t be moved until a tow truck came.

The contact owns a 2021 GMC Yukon XL. The contact stated while driving approximately 3-5 MPH, the vehicle unintendedly shifted to neutral, and the vehicle stalled immediately. The contact stated that the vehicle failed to restart. The vehicle was towed to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired because the engine was on backorder. The manufacturer was informed of the failure and confirmed that the VIN was not under recall. The manufacturer opened a case for the failure. The failure mileage was approximately 80,000. The VIN was unavailable.

Driving on the highway going 65 mph the engine started making a ticking noise and all of the sudden the car died and barely made it to the shoulder and after that the car wouldn’t start or nothing. Now the dealership had the car for a couple weeks already and still no update on when it’s getting fixed